The invention relates to a lower bottom plate assembly which comprises a lower bottom plate and a buffer heat insulation layer. The second surface of the lower bottom plate comprises a pit area and a non-pit area, and the pit area is sunken towards the first surface of the lower bottom plate; the first surface of the lower bottom plate and the second surface of the lower bottom plate are two opposite surfaces of the lower bottom plate; the buffer heat insulation layer is arranged in the pit area, and the first surface of the buffer heat insulation layer makes contact with the second surface of the lower bottom plate. According to the lower bottom plate assembly provided by the technical scheme, the pit area is arranged on the lower bottom plate, and the buffer heat insulation layer is arranged in the pit area, so that the height of the second surface of the buffer heat insulation layer higher than the non-pit area of the second surface of the lower bottom plate after the buffer heat insulation layer is mounted on the lower bottom plate is reduced; and the size of the lower bottom plate assembly in the thickness direction is further reduced. The battery pack adopts the lower bottom plate assembly provided by the technical scheme, so that the size of the battery pack in the height direction can be reduced.

    本申请涉及一种下底板组件,包括下底板以及缓冲隔热层;下底板的第二表面包括凹坑区域与非凹坑区域,凹坑区域向下底板的第一表面凹陷;下底板的第一表面与下底板的第二表面为下底板的两相对的表面;缓冲隔热层设置于凹坑区域内,缓冲隔热层的第一表面与下底板的第二表面接触。上述技术方案所提供的下底板组件,采用在下底板设置凹坑区域,并将缓冲隔热层设置于凹坑区域内的方式,减小缓冲隔热层安装于下底板之后缓冲隔热层第二表面高出下底板第二表面非凹坑区域的高度,进而减小下底板组件在厚度方向上的尺寸。电池包中采用上述技术方案提供的下底板组件,能够减小电池包在高度方向上的尺寸。


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    Titel :

    Lower bottom plate assembly, battery pack, electric vehicle and processing method of battery pack


    Weitere Titelangaben:

    一种下底板组件、电池包、电动车以及电池包的加工方法


    Beteiligte:
    HUANG HONGGUANG (Autor:in) / ZENG YONG (Autor:in) / YE BIN (Autor:in)

    Erscheinungsdatum :

    25.04.2023


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY



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